城市污水预水解对二级生化处理的影响蒋岚岚

蒋岚岚1　羊鹏程2　梁　汀1　杨薇兰2(1.,214072;2.,214011):为考察预水解对后续二级生化处理的影响,结合无锡市城北污水处理厂实际运行情况进行了生产性试验研究。结果表明,对于工业废水占40%的城市污水而言,原水经过水解预处理后的可生化性得到提高,并且由于水解池在未满负荷运行的情况下对碳源有机物的去除率较高,对后续硝化脱氨、反硝化脱氮和除磷存在不同的影响。:预水解;城市污水;二级生化处理THEEFFECTOFPREHYDROLYSISOFURBANSEWAGEONTHESECONDARYBIO-TREATMENTJiangLanlan1　YangPengcheng2　LiangTin1　YangWeilan2(1.WuxiMunicipalDesignInstituteCo.,Ltd,Wuxi214072,China;2.WuxiDrainageCompany,Wuxi214011,China)Abstract:Plantexperimentswereconductedtoinvestigatetheeffectofprehydrolysisonthesecondarybio-treatmentinWuxiCheng-beiWastewaterPlant.Itwasbelievedthatthebio-degradablecharacterofinfluentwasimprovedaftertheprehydrolysisoftheurbansewage,ofwhichindustrialwastewatertakes40%.Thehydrolytictankwhichwasoperatingunderthedesignloadaffectedthefollow-upprocesses,forinsistence,thenitrification,thedenitrification,andphosphorremoval.Keywords:prehydrolysis;urbansewage;secondarybiotreatment0　()。5×104m3d,2001。,2004,5×104m3d。,,。,。,、,。。,[1]。1　10×104m3d,(6∶4),:ρ(COD)600mgL,ρ(BOD5)200mgL,ρ(SS)300mgL,ρ(TKN)40mgL,ρ(NH3-N)25mgL,ρ()4mgL。,-(Orbal),。GB18918-2002《》B。20067,(10×104m3d)。1。Orbal,。(5×104m3d),。2　Orbal,,20067—17　　　20098274DOI:10.13205/j.hjgc.2009.04.016　;。1　20074、。2.1　水解酸化对进水可生化性的影响,,,[1-3]。(),ρ(B)ρ(C)0.285,,,ρ(B)ρ(C)2。2　,,COD、BOD5,,BC(0.068)。2.2　对后续生化处理污泥性能的影响,5×104m3d,4×104m3d,。(MLSS)5500mgL,MLVSSMLSS≈40%,(SV)30%,(SVI)55mLg。,,,[4]。,。,,MLSS。,,COD、BOD5SS60%,,(FM),MLSS,,SS。2.3　对后续生化处理溶解氧的影响(),。Orbal,。,BOD5,Orbal、、DO。2.4　对原水硝化的影响NH3-N,1。,NH3-N:;NH3-N。NH3-N,[5]。,5～6h,NH3-N,NH3-N。4.7h,,NH3-N。　　OrbalNH3-N,96.89%。NH3-N22.83mgL,NH3-N8mgL。A。18　　　20098274NH3-N。:1)()pH,,pH7.0～7.5。pH,。2),,,。BODTKN[6]。BOD5DO。1　NH3-NTPρ(NH3-N)(mg·L-1)ρ(TP)(mg·L-1)%%%%06-0924.7627.44-12.60.3898.396.086.07-4.790.4491.6906-1021.7528.16-29.80.5197.566.816.39-6.290.3793.2406-1124.4827.64-14.90.6797.247.456.96-2.390.3494.8306-1222.0126.00-19.20.8895.816.966.58-4.430.3994.4222.8327.29-20.40.6996.897.096.66-4.280.3794.192.5　对原水反硝化的影响TN,,TN,,TN68.6mgL,41.3mgL,15.1mgL,TN63.45%。B。、TN,TN。:1),[7]。,BOD5TKN4,。BOD5TN≈2,。2),,。,,DODO。2.6　对原水除磷的影响1,TP,-4.28%。:1),;2),,。BODVFA,VFAPHB,。,,,TP。TP0.6mgL,,,TP。:1),。2),,[6]。TP,,BOD590mgL,,,PHBPHA,,TP[8]。3),,,,[9]。2.22.3,、TP。3　1),。2),,,。3),。4)NH3-NTP,。,,、。(24)19　　　20098274,。(9),v=0,(11)(9),ε=-0.05πfI0sin(2πft+φ)Sicosθ,ε,。ε,。,,,。4　,,。,ε=ε＊i。,,,,。CaCO3,。[1]　DonaldsonJD,GrimesS.Liftingthescalesfromourpipes[J].NewScient,1988,117(18):43-46.[2]　WangY,BabchinAJ.Rapidonsetofcalciumcarbonatecrystallizationundertheinfluenceofamagneticfield[J].WatRes,1997,31(2):346-350.[3]　,.CaCO3[J].,2006,32(4):74-76.[4]　BikulchyusG,RuchinskeneA,DeninisV.Corrosionbehavioroflow-carbonsteelintapwatertreatedwithpermanentmagneticfield[J].ZashchitaMetallov,2003,39(5):492-496.[5]　LiM,QuJH,PengYZ.Sterilizationofescherichiacolicellsbytheapplicationofpulsedmagneticfield[J].JournalofEnvironmentalSciences,2004,16(2):348-352.[6]　TombaczE,MaC,BuschKW,etal.Effectofaweakmagneticfieldonhematitestationaryandflowingsystems[J].ColloidPolymSci,1991,269(3):278-289.[7]　,,,.[J].,2006,18(7):59-62.[8]　PangXF,DengB.Changesoffeaturesofwaterunderactionofmagneticfieldanditsmechanismofchange[J].JournalofAtomicandMolecularPhysics,2007,24(2):281-290.[9]　BakerJS,JuddSJ.Magneticameliorationofscaleformation[J].WaterResearch,1996,30(2):247-260.[10]　GabrielliC,JaouhariR,MaurinG,etal.Magneticwatertreatmentforscaleprevention.WatRes,2001,35(13):3249-3259.　　100176　　7470E-mail　[e-mail]2000-07-08(19)[1]　,,.[M].:,1987.[2]　,.[M].:,2003.[3]　.--[J].,1997,23(2):28-31.[4]　,,.[J].,2006,24(4):22-24.[5]　,,.[J].,2000,26(7).[6]　,.[M].:,2001.[7]　,.[M].:,1998.[8]　,,,.AmOn[J].,2006,24(4):7-9.[9]　,,,.A2O[J].,2004,20(6):12-15.　　214072　901　E-mail　[e-mail]2008-11-1824　　　20098274